ISBN number search > Finland > Hobby Kustannus Oy
| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1999 | 978-952-5334-01-2 | Kalevi Keskinen | Dornier Do 17z Junkers Ju 88 A-4 (Finnish Air Force History, 2) |
| 2000 | 978-952-5334-02-9 | Kalevi Keskinen | FOKKER D.XXI (Mercury) |
| '' | 978-952-5334-03-6 | '' | FOKKER D.XXI (Wasp) |
| 2004 | 978-952-5334-05-0 | Keskinen Kalevi und Kari Stenman | Suomen Ilmavoimien Historia 6b: Messerschmitt Bf 109 G-6. |